Patent attributes
Systems, methods, and computer program products are disclosed for authenticating access to a user device using tactile-based feedback provided to a user of the device. A user device may include a display layer and a tactile layer. The user device may be configured to selectively activate portions of the tactile layer to cause opposing regions of a surface of the display layer to become raised relative to other regions of the display surface. A user may be required to specify a sequence of directional movements corresponding to a correct passcode pattern by traversing a path along the raised regions. The particular arrangement of raised regions may change each time access to the user device is requested by activating different portions of the tactile layer, thereby giving the appearance to a third party that a different passcode pattern is being entered each time, and thus, minimizing likelihood of unauthorized passcode detection.